Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
Simon Glass | a73bda4 | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 2 | /* |
| 3 | * (C) Copyright 2000-2009 |
| 4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
Simon Glass | a73bda4 | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 5 | */ |
| 6 | |
| 7 | #ifndef __CONSOLE_H |
| 8 | #define __CONSOLE_H |
| 9 | |
Simon Glass | 66ee817 | 2020-07-02 21:12:13 -0600 | [diff] [blame] | 10 | #include <stdbool.h> |
Andy Shevchenko | 2bce021 | 2020-12-21 14:30:00 +0200 | [diff] [blame] | 11 | #include <stdio_dev.h> |
Simon Glass | dc357ef | 2020-07-28 19:41:11 -0600 | [diff] [blame] | 12 | #include <linux/errno.h> |
Simon Glass | 66ee817 | 2020-07-02 21:12:13 -0600 | [diff] [blame] | 13 | |
Simon Glass | a73bda4 | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 14 | extern char console_buffer[]; |
| 15 | |
| 16 | /* common/console.c */ |
| 17 | int console_init_f(void); /* Before relocation; uses the serial stuff */ |
| 18 | int console_init_r(void); /* After relocation; uses the console stuff */ |
Andy Shevchenko | 2bce021 | 2020-12-21 14:30:00 +0200 | [diff] [blame] | 19 | int console_start(int file, struct stdio_dev *sdev); /* Start a console device */ |
| 20 | void console_stop(int file, struct stdio_dev *sdev); /* Stop a console device */ |
Simon Glass | a73bda4 | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 21 | int console_assign(int file, const char *devname); /* Assign the console */ |
| 22 | int ctrlc(void); |
| 23 | int had_ctrlc(void); /* have we had a Control-C since last clear? */ |
| 24 | void clear_ctrlc(void); /* clear the Control-C condition */ |
| 25 | int disable_ctrlc(int); /* 1 to disable, 0 to enable Control-C detect */ |
| 26 | int confirm_yesno(void); /* 1 if input is "y", "Y", "yes" or "YES" */ |
| 27 | |
Andy Shevchenko | 70e7ced | 2020-12-21 14:30:04 +0200 | [diff] [blame] | 28 | /** |
| 29 | * console_search_dev() - search for stdio device with given flags and name |
| 30 | * @flags: device flags as per input/output/system |
| 31 | * @name: device name |
| 32 | * |
| 33 | * Iterates over registered STDIO devices and match them with given @flags |
| 34 | * and @name. |
| 35 | * |
| 36 | * @return pointer to the &struct stdio_dev if found, or NULL otherwise |
| 37 | */ |
Andy Shevchenko | cfaed7f | 2020-12-21 14:30:03 +0200 | [diff] [blame] | 38 | struct stdio_dev *console_search_dev(int flags, const char *name); |
Andy Shevchenko | f389f9c | 2020-12-21 14:30:02 +0200 | [diff] [blame] | 39 | |
Simon Glass | dc357ef | 2020-07-28 19:41:11 -0600 | [diff] [blame] | 40 | #ifdef CONFIG_CONSOLE_RECORD |
Simon Glass | 1bb4923 | 2015-11-08 23:47:48 -0700 | [diff] [blame] | 41 | /** |
| 42 | * console_record_init() - set up the console recording buffers |
| 43 | * |
| 44 | * This should be called as soon as malloc() is available so that the maximum |
| 45 | * amount of console output can be recorded. |
Simon Glass | dc357ef | 2020-07-28 19:41:11 -0600 | [diff] [blame] | 46 | * |
| 47 | * @return 0 if OK, -ENOMEM if out of memory |
Simon Glass | 1bb4923 | 2015-11-08 23:47:48 -0700 | [diff] [blame] | 48 | */ |
| 49 | int console_record_init(void); |
| 50 | |
| 51 | /** |
| 52 | * console_record_reset() - reset the console recording buffers |
| 53 | * |
| 54 | * Removes any data in the buffers |
| 55 | */ |
| 56 | void console_record_reset(void); |
| 57 | |
| 58 | /** |
| 59 | * console_record_reset_enable() - reset and enable the console buffers |
| 60 | * |
| 61 | * This should be called to enable the console buffer. |
Simon Glass | dc357ef | 2020-07-28 19:41:11 -0600 | [diff] [blame] | 62 | * |
| 63 | * @return 0 (always) |
Simon Glass | 1bb4923 | 2015-11-08 23:47:48 -0700 | [diff] [blame] | 64 | */ |
Simon Glass | dc357ef | 2020-07-28 19:41:11 -0600 | [diff] [blame] | 65 | int console_record_reset_enable(void); |
Simon Glass | 1bb4923 | 2015-11-08 23:47:48 -0700 | [diff] [blame] | 66 | |
Simon Glass | c9c5c9f | 2017-06-15 21:37:50 -0600 | [diff] [blame] | 67 | /** |
Simon Glass | b17c158 | 2020-01-27 08:49:54 -0700 | [diff] [blame] | 68 | * console_record_readline() - Read a line from the console output |
| 69 | * |
| 70 | * This reads the next available line from the console output previously |
| 71 | * recorded. |
| 72 | * |
| 73 | * @str: Place to put string |
| 74 | * @maxlen: Maximum length of @str including nul terminator |
Simon Glass | d6ed4af | 2021-05-08 06:59:56 -0600 | [diff] [blame] | 75 | * @return length of string returned, or -ENOSPC if the console buffer was |
| 76 | * overflowed by the output |
Simon Glass | b17c158 | 2020-01-27 08:49:54 -0700 | [diff] [blame] | 77 | */ |
| 78 | int console_record_readline(char *str, int maxlen); |
| 79 | |
| 80 | /** |
| 81 | * console_record_avail() - Get the number of available bytes in console output |
| 82 | * |
| 83 | * @return available bytes (0 if empty) |
| 84 | */ |
| 85 | int console_record_avail(void); |
Simon Glass | dc357ef | 2020-07-28 19:41:11 -0600 | [diff] [blame] | 86 | #else |
| 87 | static inline int console_record_init(void) |
| 88 | { |
| 89 | /* Always succeed, since it is not enabled */ |
| 90 | |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | static inline void console_record_reset(void) |
| 95 | { |
| 96 | /* Nothing to do here */ |
| 97 | } |
| 98 | |
| 99 | static inline int console_record_reset_enable(void) |
| 100 | { |
| 101 | /* Cannot enable it as it is not supported */ |
| 102 | return -ENOSYS; |
| 103 | } |
| 104 | |
| 105 | static inline int console_record_readline(char *str, int maxlen) |
| 106 | { |
| 107 | /* Nothing to read */ |
| 108 | return 0; |
| 109 | } |
| 110 | |
| 111 | static inline int console_record_avail(void) |
| 112 | { |
| 113 | /* There is never anything available */ |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | #endif /* !CONFIG_CONSOLE_RECORD */ |
Simon Glass | b17c158 | 2020-01-27 08:49:54 -0700 | [diff] [blame] | 118 | |
| 119 | /** |
Simon Glass | c9c5c9f | 2017-06-15 21:37:50 -0600 | [diff] [blame] | 120 | * console_announce_r() - print a U-Boot console on non-serial consoles |
| 121 | * |
| 122 | * When U-Boot starts up with a display it generally does not announce itself |
| 123 | * on the display. The banner is instead emitted on the UART before relocation. |
| 124 | * This function prints a banner on devices which (we assume) did not receive |
| 125 | * it before relocation. |
| 126 | * |
| 127 | * @return 0 (meaning no errors) |
| 128 | */ |
| 129 | int console_announce_r(void); |
| 130 | |
Simon Glass | 66ee817 | 2020-07-02 21:12:13 -0600 | [diff] [blame] | 131 | /** |
| 132 | * console_puts_select_stderr() - Output a string to selected console devices |
| 133 | * |
| 134 | * This writes to stderr only. It is useful for outputting errors |
| 135 | * |
| 136 | * @serial_only: true to output only to serial, false to output to everything |
| 137 | * else |
| 138 | * @s: String to output |
| 139 | */ |
| 140 | void console_puts_select_stderr(bool serial_only, const char *s); |
| 141 | |
Simon Glass | a73bda4 | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 142 | /* |
| 143 | * CONSOLE multiplexing. |
| 144 | */ |
| 145 | #ifdef CONFIG_CONSOLE_MUX |
| 146 | #include <iomux.h> |
| 147 | #endif |
| 148 | |
| 149 | #endif |